I assume that Qt Creator and Qt Eclipse integration have different constructor versions that they use. (I know that this is the case for the Creator.) Because they use different design applications, they are probably also looking for plugins other than the standard Designer program. My first suggestion is to try to find where this place is and copy the plugin there.
If the copied plugin does not work, you probably have several incompatible versions of the constructor for one or the other. It will take a little more research, but more research is likely to be overcome.
source
share